Item Type: Oil Brake Fluid Liquid TesterMaterial: ABSProduct Adapter Battery: Button Battery Model: 1 x CR1225 Quantity(Delivered Without Battery)LCD Display:Tire Pressure Decection.Kpa,Psi,Bar Pressure Units by Switching Button,Tire Pressure Decection Button ,Brake Fluid Decection ButtonLED Light: Detecting DOT4 brake fluid performance,Water 0% Good ,Water 3% Bad1High and New Technology: The tester is a new high tech product that combines automotive brake fluid detection and tire pressure testing 2Safe Use: Users can regularly check the water content of the brake fluid of the car to make you safer and safer in driving 3Simple and Portable: 2 in 1 super cost effective, simple and portable, highly accurate, exquisite appearance 42 in 1: 2 in 1 brake fluid detection and tire pressure test, one pen to prevent two potential hazards, to protect your safe driving 5Security Check: Test the car brake fluid quality quickly to check whether it is qualified, which can remind you to change the brake fluid when necessary to avoid traffic accidentDelivered Without Battery1 xOil Brake Fluid Liquid Tester